/*
 * Copyright (c) 2012, Texas Instruments Incorporated
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * *  Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * *  Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * *  Neither the name of Texas Instruments Incorporated nor the names of
 *    its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
/*
 *  ======== Swi_andn.c ========
 */

#include <xdc/std.h>

#include <ti/sysbios/hal/Hwi.h>

#include "package/internal/Swi.xdc.h"


/*!
 *  ======== Swi_andn ========
 */
Void Swi_andn(Swi_Object *swi, UInt mask)
{
    UInt hwiKey;

    hwiKey = Hwi_disable();

    if (swi->trigger != 0) {
        swi->trigger &= ~mask;
        if (swi->trigger == 0) {
            Hwi_restore(hwiKey);
            Swi_post(swi);
            return;
        }
    }

    Hwi_restore(hwiKey);
}

/*
 *  ======== Swi_dec ========
 */
Void Swi_dec(Swi_Object *swi)
{
    UInt hwiKey;

    hwiKey = Hwi_disable();

    if (swi->trigger != 0) {
        swi->trigger -= 1;
        if (swi->trigger == 0) {
            Hwi_restore(hwiKey);
            Swi_post(swi);
            return;
        }
    }

    Hwi_restore(hwiKey);
}


